Title :
Investigation of Surface-Wave Reduction in UC-PBG Patch Antenna by Using a Transient Electrooptic Near-Field Mapping Technique
Author :
Oh, Kyoung-Hwan ; Song, Jong-In
Author_Institution :
Dept. of Inf. & Commun., Gwangju Inst. of Sci. & Technol.
Abstract :
A transient electrooptic near-field mapping system based on a gain-switched distributed feedback (DFB) pulsed laser and a CdTe electrooptic crystal was used for characterizing transient near-field patterns of conventional and uniplanar compact photonic bandgap (UC-PBG) patch antennas fabricated on a low-cost FR4 substrate. Effect of the UC-PBG structure on reduction in surface waves in the UC-PBG patch antenna was investigated experimentally by comparing transient near-field patterns of the conventional and UC-PBG patch antennas
Keywords :
antenna radiation patterns; cadmium compounds; distributed feedback lasers; electro-optical effects; microstrip antennas; photonic band gap; planar antennas; substrates; surface electromagnetic waves; CdTe; DFB pulsed laser; FR4 substrate; UC-PBG patch antenna; electrooptic crystal; gain-switched distributed feedback; surface waves; transient electrooptic near-field mapping system; transient near-field pattern; uniplanar compact photonic bandgap; Dielectric losses; Dielectric substrates; Distributed feedback devices; Lasers and electrooptics; Optical losses; Optical pulses; Patch antennas; Photonic band gap; Pulse amplifiers; Surface waves; Patch antenna; surface wave; transient electro- optic near-field mapping; uniplanar compact photonic bandgap (UC-PBG);
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2006.886558
